Metadata is pieces of information that help describe and identify content. Metadata is important in every search system since it's this information that comes into play when users search using the search tools and what can make their searches relevant and satisfactory. In this chapter, you will learn what types of metadata macOS uses and how it uses this metadata. You will also learn about the different search tools available in macOS for efficient searching.

By the end of this chapter, you will be able to describe how macOS uses metadata and the metadata resources available in macOS (such as tags) that you can use to organize data and improve searching. You will use the Spotlight tool for efficient searching and Siri to perform hands-free tasks and searches with the help of Apple's voice recognition technology.

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